JPS6117892Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a loading platform fixing structure for a truck, etc., using an extruded aluminum alloy material as the main girder of the truck, etc.

Generally, the main girders and cross beams used in trucks and trailers are made of iron, and the reality is that each of these parts is assembled by welding, bolting, riveting, etc. It has the following drawbacks. That is, a) If it is made of iron, it will be heavier and the loading capacity will be reduced accordingly.

b. With the conventional assembly method, it takes time for pre-assembly, installation, etc., and increases the number of man-hours.

c Distortion occurs in the structure due to welding, which adversely affects the dimensional accuracy and fit of the product.

This idea uses extruded aluminum as the main girder material to eliminate the above drawbacks, maintain high mechanical strength, and facilitate connection with the crossbeams and chassis. be.

Next, this invention will be explained in detail with reference to the drawings.

In this invention, the main girder 4 is made of an extruded aluminum alloy material as shown in FIG. A bolt mounting groove 11 is provided in a plurality of protrusions 10 formed protruding from both side surfaces 9 of the main body frame 8.

Figures 2 and 3 show a normal truck.
This shows an example in which the main girder 4 having the cross-sectional shape shown in FIG. 11 is loaded with a head 17 of a bolt 16 used to connect an accelerator-shaped set plate 15 connected to the chassis 12 with a connecting bolt 14 to the main spar 4, and the other side of the main spar 4 is The lower part of the angle-shaped connecting member 19 whose upper part is bolted to the cross beam 18 is inserted into the bolt mounting groove 11 of the main beam 4.
Head 2 of bolt 20 used to connect to
1 is charged.

Each of the bolts 16 and 20 has a nut 2.
2 and 23 are screwed into each set plate 15.
The connecting member 19 is connected to the connecting member 19. in this case,
The set plate 15 and the connecting member 19 can be fixed at close positions on the same side as long as they do not interfere with each other by tightening bolts, and depending on the connection strength required for each member, the necessary number of bolts can be installed in the front and rear directions. Of course, it can also be used in the vertical direction.
Note that a floor plate 24 is placed on the crossbeam 18 as usual.

In each of the above examples, the bolt is inserted into the bolt mounting groove 11 from the edge of the profile, and its mounting position can be changed by sliding within the groove 11.

By employing the main girder of this invention as described above, the following effects can be obtained.

That is, (1) the main body frame of the mold material has an uninterrupted quadrilateral outline, so it is structurally stable and has high mechanical strength.

(2) The set plates connected to the transverse beams and chassis attached to the main girder are attached to the required number of bolts fitted into the bolt mounting grooves formed in the protrusions formed protruding from the main body frame. Therefore, it can be mounted freely and easily at any position.

(3) By using aluminum for the main girder,
The weight of the entire vehicle will be reduced, and the loading capacity is expected to increase.

(4) In particular, when using aluminum heat-treated alloy shapes, there is no need for welding and installation, so there is no decrease in strength due to the effects of welding heat, and the advantageous aspects of high-strength heat-treated materials can be utilized.

(5) Easy to install, leading to a reduction in bodywork man-hours.

(6) There is no distortion caused by welding installation, and it can provide favorable conditions for dimensional accuracy and assembly.

[Brief explanation of the drawing]

Figure 1 is an enlarged sectional view of the main girder, and Figures 2 and 3 are
The figures are a front sectional view and a side sectional view showing an example of the use of the invention on a conventional truck. In the figure, 4...Main girder, 8...Body frame,
9...Side surface, 10...Protrusion, 11...Bolt mounting groove.

Claims (1)

[Scope of utility model registration request] The main girder 4 is mounted on the chassis 12 with a cushioning material 13 in between, and the body frame 8 is made of an aluminum alloy profile having a continuous quadrilateral outline. 11, 11 are provided, and a set plate 15, which is connected to the chassis 12 via a connecting bolt 14, is attached to a bolt 16 having a head 17 inserted into the bolt mounting groove 11. The cross beam 1 is connected to the main body frame 8 by tightening the nut 22, and at a position where it does not interfere with the set plate 15.
A truck loading platform fixing structure in which a lower part of a connecting member 19 whose upper part is fixed to a bolt 8 is tightened with a nut 23 to a bolt 20 whose head 21 is inserted into the bolt mounting groove 11.